Finding the Fourth Proportional to 138,197.82, 207,314.97 and 48,242.15
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Solution
The fourth proportional to 138,197.82, 207,314.97 and 48,242.15 is: 72,369.60
Step by Step Solution
- Step 1: Write the proportion equation
138,197.82 : 207,314.97 = 48,242.15 : x - Step 2: Convert to fraction form
138,197.82/207,314.97 = 48,242.15/x - Step 3: Cross multiply
138,197.82x = 207,314.97 × 48,242.15 - Step 4: Simplify right side
138,197.82x = 10,001,320,353.05 - Step 5: Solve for x
x = 10,001,320,353.05/138,197.82 - Step 6: Final answer
x = 72,369.60
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.